You ______ a tip if you're not satisfied with the service.
A: mustn't leave
B: must leave
C: can leave
D: don't have to leave
A: mustn't leave
B: must leave
C: can leave
D: don't have to leave
举一反三
- They ____ a tip if the service is poor. A: don’t have to leave B: must no leave C: cannot leave D: do not leave
- — May we leave the classroom now — No, you ______. You ______ to leave until the bell rings. A: needn’t ; are allowed B: don’t have to; are supposed C: mustn’t ; aren’t allowed D: can’t ; aren’t supposed
- why don’t you now ? A: leave B: not leaving C: not leave D: don’t leave
- A：Must I turn off the light when I leave? B:No, _____. A: you mustn't B: you can't C: you needn't
- In many countries, it is usual to leave a __________ if you are satisfied with the service A: pound B: note C: tip